A method and system for configuring UAV network traffic based on SDN distributed control

Abstract

The present invention provides a UAV network traffic configuration method and system for SDN distributed control. The method includes: when the power of the UAV is about to reach the set threshold, query the data relayed by the UAV based on the local database flow information; according to the data flow information, the original node and target node of the new path are calculated based on the data flow relayed by the UAV, and the local network topology table is converted into a directed graph with weights. According to the directed graph The link weight, the original node and the target node calculate a new path for the data flow; send the MOD message to the UAV node controller on the new path according to the priority of the data flow information; the UAV node controller that receives the MOD message replies The corresponding ACK message completes the routing switch and implements traffic configuration. Solve the problem of communication interruption of related users caused by the drone leaving the network due to power exhaustion in the network. By distinguishing the priority of data flow, high-level users can give priority to completing traffic planning to achieve communication.

Description

Technical field[0001]The invention belongs to the technical field of drone networks, and relates to a method and system for realizing flow configuration in an SDN distributed control drone network.Background technique[0002]The UAV network needs to support the dynamic movement of the UAV and the frequent changes of the network topology, and due to the differences between the upper layer protocols, the UAV may not work properly in different network environments. Secondly, the limited flight time of the UAV leads to the network. Normal communication time is limited, so the entire UAV network is required to achieve comprehensive and effective management and resource utilization. Software-defined networking (SDN) separates the control layer from the data layer and controls the network in a software-defined way. Its application in UAV networks solves the above-mentioned problems encountered in UAV networks. The software definition of SDN softwareizes various routing protocols under the sa...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a traffic configuration method and system based on SDN distributed control, to overcome the problem in the prior art that the unmanned aerial vehicle is disconnected from the unmanned aerial vehicle network due to the exhaustion of power. In the UAV network controlled by the UAV, the traffic flowing through the UAV is planned to other paths in advance to realize the pre-planning of the UAV traffic. When the UAV is out of the UAV network due to battery exhaustion Can still maintain normal communication with users

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